题目内容：

A gunman killed eight people at a mall in Omaha this afternoon and then killed himself, setting off panic among holiday shoppers, the police said.

“The person who we believe to be the shooter has died from self-inflicted(自残式的) gunshot wounds,” Sergeant Teresa Negron of the Omaha Police Department said at televised news. “We have been able to clear the mall,” she said. “We don't believe we have any other shooters.” The police said that at least five other people had been injured in the shootings.

She did not give the shooter's identity. “We are still conducting the investigation,” Sergeant Negron said, adding that the city’s mayor, who was out of town, was on his way back to Omaha.

She said the police received a 911 call from someone inside the Westroads Mall on the west side of Omaha, and shots could be heard in the background. The first police officers arrived at the mall six minutes after the first call, she said but by then the shootings were over.

It is reported that the gunman left a suicide note that was found at his home by relatives. A law enforcement official who spoke on condition of anonymity(匿名) said the note indicated that the gunman wanted to “go out in style.”

The shootings broke the usually ordinary routine of holiday shopping. The gunman was said by some witnesses to have fired about 20 shots into a crowd. Some customers and workers ran screaming from the mall, while others dived into dressing rooms to hide from the shooter.

Shoppers and store workers were trapped inside the mall, which has roughly 135 stores. Others streamed out of mall exits with their hands raised. Our president was in Omaha this morning to deliver a speech, but he had left the city by the time the shootings took place.

1.Where can we probably read this article?

A. A travel magazine.

B. A daily newspaper.

C. A story book.

D. A research report.

2.What do the underlined words "go out in style" probably mean?

A. To go out of the mall in particular clothes.

B. To walk in the mall with oneself focused on.

C. To stop his life in an impressive way.

D. To go to a social event by fashionable means.

3.Which of the following is TRUE according to the passage?

A. Nobody knows why the shooter did so and nothing was found at his home.

B. The city’s mayor went to the site when the shooting took place.

C. Police arrived at the mall before the shooting was over and rescued customers.

D. The official who showed what the note meant wanted to keep himself from being known to the public.

4.Which of the following can be the best title of the passage?

A. President Happened to Escape a Shot

B. Shoppers in Great Panic before the Holiday

C. Shooter Found Dead in a Mall on the west of Omaha

D. Gunman Killed 8 People, Then Himself at a Mall in Omaha